Rifle-sight



33-256. OR 103389183 5R G. S. LEWIS.

RIFLE SIGHT.

APPLICATION 11.50 MAY17,19I9.

1,338, 1 83-, Patented Apr. 27, 1920.

"1%. 5.10: m Man/$92327 W jaw GEORGE S. LEWIS, OF SPRING-FIELD,MASSACHUSETTS, ASSIGNOR T0 J. STEVENS ARMS COMPANY, OF GHICOPEE FALLS,MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS.

RIFLE-SIGHT.

Specification of Letters Patent.

Patented Apr. 2'7, 1920.

To all whom it may concern.-

Be it known that I, Gnonen S. LEWIS, a citizen of the United States,residing at Springfield, in the State of Massachusetts, have inventedcertain new and useful Improvements in Rifle-Sights, of which thefollowing is a specification, reference being had to the accompanyingdrawings, forming a part hereof.

Under widely different conditions of use of some classes of firearms itis sometimes necessary to change the elevation considerably. The purposeof this invention is to provide an improved sight which shall be readilycapable of adjustment through a wide range in orderto meet suchconditions. The invention will be more fully explained hereinafter withreference to the accompanying drawing, in which it is illustrated and inwhich Figure 1 is a View in elevation of the improved sight.

Fig. 2 is a view thereof in section on the plane indicated by the brokenline 2-2 of Fig. 1, looking in the direction of the arrows.

The supporting block a is adapted to be secured in the usual manner tothe rifle and has pivoted thereon, between its ears a, by a pivot pin 5,also in the usual manner, the hinged leaf d, a spring 0 being secured tothe block and adapted to engage yieldingly a notch in the hub d of theleaf (Z for the purpose of holding the leaf in working position. Theleaf is slotted longitudinally, as at d, to form a guide on which mayslide the sight or apertured member e. In the lower end of the slot d ofthe leaf (Z is fixed a hollow screw f and to the sliding sight e issecured a screw 9, the bore of the screw and the screw 9 being sorelated that the screw 9 may telescope within the hollow screw f. Asleeve nut h is threaded at its lower end to engage the hollow screw fand is threaded at its upper end, as at h, to engage the screw g, thescrews f and 9 being left and right threaded respectively. The sleevenut h is milled or knurled externally for convenience in operation. Themovable or apertured sight e may comprise a plate 6 to which the screw 9is secured and having an opening 6 a windage block 6 carried by athreaded spindle e mounted in guides e on the plate 6' and provided withnuts 6, and a cupped disk e provided with a hollow threaded stem e whichengages the windage block 6 By slightly unscrewing the apertured disk 6the sight is released for movement either vertically or for windage, andby screwing it up the sight is clamped in position on the leaf (1.

When the sight is raised to or nearly raised to its greatest elevationthe screws f and g occupy the relation shown in Fig. 2, and when thesight is lowered to its lowest point the screw 9 is telescoped withinthe hollow screw f. By this arrangement a great range of adjustment ofthe sight is possible without complicated or expensive structure.

I claim as my invention:

1. In a rifle sight, the combination of a supporting member, a movable,apertured member mounted slidably upon the supporting member, a hollowscrew secured to one of said members, a screw adapted to enter thehollow screw and secured to the other member, said screws beingreversely threaded, and a sleeve nut engaging both of said screws.

2. In a rifle sight, the combination of a hinged leaf, a movable,apertured member mounted slidably upon the leaf, a hollow screw securedto one of said parts, (that is, the leaf and the apertured member) ascrew adapted to enter the hollow screw and secured to the other of saidparts, said screws being reversely threaded, and a sleeve nut engagingboth of said screws.

This specification signed this 14th day of May, A. D. 1919.

GEORGE S. LEWIS.

